// ============================================================================
// YooAssetInitTask.cs — YooAsset 初始化启动任务
// 在 LaunchInHot 的启动流水线中初始化 YooAsset，与 AssetBundleInitTask 并行/替代
// T013: Register YooAssetService as IYooAssetBridge
// ============================================================================

using Cysharp.Threading.Tasks;
using ProjSG.Resource;
using UnityEngine;
using YooAsset;

public class YooAssetInitTask : LaunchTask
{
    private bool _initStarted = false;
    private bool _initCompleted = false;

    public override float expectTime
    {
        get { return LocalSave.GetFloat("YooAssetInitTask_ExpectTime", 1f); }
        protected set { LocalSave.SetFloat("YooAssetInitTask_ExpectTime", value); }
    }

    public override void Begin()
    {
        LaunchInHot.m_CurrentStage = LaunchStage.AssetBundleInit;
        duration = Mathf.Max(0.5f, expectTime);

        if (!_initStarted)
        {
            _initStarted = true;
            RunInitAsync().Forget();
        }
    }

    private async UniTaskVoid RunInitAsync()
    {
        try
        {
            // Determine play mode based on AssetSource setting
            EPlayMode playMode;
            if (!AssetSource.isUseAssetBundle)
            {
#if UNITY_EDITOR
                playMode = EPlayMode.EditorSimulateMode;
#else
                playMode = EPlayMode.OfflinePlayMode;
#endif
            }
            else
            {
                playMode = EPlayMode.HostPlayMode;
            }

            // Initialize YooAssetService
            await YooAssetService.Instance.InitializeAsync(playMode);

            // Register as IYooAssetBridge for Launch assembly cross-assembly access
            YooAssetBridgeHolder.Register(YooAssetService.Instance);

            // US4 T042: Register default preload configs and execute StartupEssential preload
            ResourcePreloader.Instance.RegisterDefaultConfigs();
            await ResourcePreloader.Instance.PreloadAsync("StartupEssential");

            Debug.Log("[YooAssetInitTask] YooAssetService initialized, bridge registered, StartupEssential preloaded.");
            _initCompleted = true;
        }
        catch (System.Exception ex)
        {
            Debug.LogError($"[YooAssetInitTask] Failed: {ex}");
            _initCompleted = true; // Mark done even on failure to avoid blocking pipeline
        }
    }

    public override void Update()
    {
        timer += Time.deltaTime;

        if (_initCompleted)
        {
            done = true;
            progress = 1f;
        }
        else
        {
            progress = Mathf.Clamp01(timer / duration);
        }

        ExceptionReport();
    }

    public override void End()
    {
        expectTime = timer;
        Debug.LogFormat("{0}执行时长：{1}；", GetType().Name, timer);
    }
}